PLANO OPTICS
WEO manufactures various types of prisms, such as amici, dove, and corner cube prisms.
Suitable applications:
PRECISION MANUFACTURING
Precision angle and sharp roof edge are achieved through “contacting” method.
Block glass is used for ensuring high homogeneity in refractive index.
Bonded prisms, such as beam splitters, are manufactured with minimal beam deviation and surface form deformation.
Surfaces may be spray painted with highly durable paint, such as Marabu paint.
Precision metrology, such as interferometer and goniometer are used to measure the quality level of the prisms.
OPTICAL GLASS MATERIALS
Our optical glass materials used are supplied by Schott, Ohara, CDGM and other reputable manufacturers. They may be supplied as pressed blank, plano ground disk or block glass.
Overview of WEO’s plano optics
| Material |
|---|
| Schott, Ohara, CDGM & others |
| Pressed blank |
| Plano ground disk |
| Product |
|---|
| Amici prism |
| Schmidt prism |
| Pechan prism |
| Right angle prism |
| Rhomboid prism |
| Beam splitter cube |
| Configuration |
|---|
| Bonded prism – controlled beam deviation and surface deformation |
| Blacken edge – paint |
| Metrology |
|---|
| Interferometer |
| Goniometer |
Prism manufacturing capabilities
| Parameters | Typical spec | Precision spec |
|---|---|---|
| Diameter (2–150mm) | +/- 0.05mm | +/- 0.02mm |
| Angle (see Remark) | +/- 1 arc minute | +/- 10 arc second |
| Irregularity on diameter 30mm | < 0.3 fringe | < 0.1 fringe |
| Irregularity on diameter 50mm | < 0.5 fringe | < 0.15 fringe |
| Surface defects | 5/2 x 0.16 | 5/1 x 0.063 |
| Beam deviation (bonded prisms) | +/- 3 arc minutes | +/- 1 arc minute |
Remark on angle: Prism roof angle can be controlled to +/- 1 arc second.
